AnswersMath II CR S2 RS3Angle Relationships (Sec 10-1)

Angle Relationships Answers

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1
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Circle V is shown. Line segments Y V and W V are radii. Tangents Y X and W X intersect at point X outside of the circle. The length of V Y is 5. Angle V is a right angle.

Question illustration
A
45°
B
50°
C
90°
D
95°
2
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Angle BCD is a circumscribed angle of circle A. Angle BCA measures 40°.

Question illustration
A
40°
B
50°
C
80°
D
100°
3

Points E, F, and D are located on circle C. The measure of arc ED is 108°.

Question illustration
A
54°
B
72°
C
108°
D
126°
4

Points N and R both lie on circle O. Line segment RQ is tangent to the circle at point R.

Question illustration
A
10.0 units
B
15.0 units
C
18.7 units
D
23.7 units
5

Angle BCD is a circumscribed angle of circle A.

Question illustration
A
10 units
B
12 units
C
14 units
D
16 units
6

Circle C is shown. Line segments E C and C D are radii. Lines are drawn from points E and D to point F on the other side of the circle. Arc E D measures 95 degrees.

Question illustration
A
37.5°
B
45°
C
47.5°
D
55°
7

Major arc JL measures 300°.

Question illustration
A
right
B
obtuse
C
scalene
D
equilateral
8

Circle O is shown. Line segments C O And A O are radii. Lines are drawn from points C and A to point B to form chords B C and B A. Angle C B A is 80 degrees.

Question illustration
A
140°
B
150°
C
160°
D
170°
9

Points A, B, C, and D lie on circle M. Line segment BD is a diameter.

Question illustration
A
45.0°
B
67.5°
C
112.5°
D
135.0°
10

Which statements about the arcs and angles are true? Select three options.

A
∠EFD ≅ ∠EGD
B
∠EGD ≅ ∠ECD
C
Arc E D is-congruent-to arc F D
Option C
D
m = 60°
Option D
E
m = 120°
Option E

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Angle Relationships Answers — Math II CR S2 RS3